Danielle McCartney1,2,3,4, Melissa J Benson1,2,3, Anastasia S Suraev1,2,3,4, Christopher Irwin5,6, Thomas R Arkell1,2,3, Ronald R Grunstein4,7,8, Camilla M Hoyos2,3,4, Iain S McGregor1,2,3. 1. Lambert Initiative for Cannabinoid Therapeutics, The University of Sydney, Sydney, New South Wales, Australia. 2. Brain and Mind Centre, The University of Sydney, Sydney, New South Wales, Australia. 3. Faculty of Science, School of Psychology, The University of Sydney, Sydney, New South Wales, Australia. 4. Centre for Sleep and Chronobiology, Woolcock Institute of Medical Research, University of Sydney, Sydney, New South Wales, Australia. 5. School of Allied Health Sciences, Griffith University, Gold Coast, Queensland, Australia. 6. Menzies Health Institute Queensland, Gold Coast, Queensland, Australia. 7. Royal Prince Alfred Hospital, Sydney, New South Wales, Australia. 8. University of Sydney, Faculty of Medicine and Health, Central Clinical School, New South Wales, Australia.
Abstract
OBJECTIVE: Interest in the use of cannabidiol (CBD) is increasing worldwide as its therapeutic effects are established and legal restrictions moderated. Unlike Δ9 -tetrahydrocannabinol (Δ9 -THC), CBD does not appear to cause cognitive or psychomotor impairment. However, further assessment of its effects on cognitively demanding day-to-day activities, such as driving, is warranted. Here, we describe a study investigating the effects of CBD on simulated driving and cognitive performance. METHODS:Thirty healthy individuals will be recruited to participate in this randomised, double-blind, placebo-controlled crossover trial. Participants will complete four research sessions each involving two 30-min simulated driving performance tests completed 45 and 210 min following oral ingestion of placebo or 15, 300, or 1,500 mg CBD. Cognitive function and subjective drug effects will be measured, and blood and oral fluid sampled, at regular intervals. Oral fluid drug testing will be performed using the Securetec DrugWipe® 5S and Dräger DrugTest® 5000 devices to determine whether CBD increases the risk of "false-positive" roadside tests to Δ9 -THC. Noninferiority analyses will test the hypothesis that CBD is no more impairing than placebo. CONCLUSION: This study will clarify the risks involved in driving following CBD use and assist in ensuring the safe use of CBD by drivers.
RCT Entities:
OBJECTIVE: Interest in the use of cannabidiol (CBD) is increasing worldwide as its therapeutic effects are established and legal restrictions moderated. Unlike Δ9 -tetrahydrocannabinol (Δ9 -THC), CBD does not appear to cause cognitive or psychomotor impairment. However, further assessment of its effects on cognitively demanding day-to-day activities, such as driving, is warranted. Here, we describe a study investigating the effects of CBD on simulated driving and cognitive performance. METHODS: Thirty healthy individuals will be recruited to participate in this randomised, double-blind, placebo-controlled crossover trial. Participants will complete four research sessions each involving two 30-min simulated driving performance tests completed 45 and 210 min following oral ingestion of placebo or 15, 300, or 1,500 mg CBD. Cognitive function and subjective drug effects will be measured, and blood and oral fluid sampled, at regular intervals. Oral fluid drug testing will be performed using the Securetec DrugWipe® 5S and Dräger DrugTest® 5000 devices to determine whether CBD increases the risk of "false-positive" roadside tests to Δ9 -THC. Noninferiority analyses will test the hypothesis that CBD is no more impairing than placebo. CONCLUSION: This study will clarify the risks involved in driving following CBD use and assist in ensuring the safe use of CBD by drivers.
Authors: Danielle McCartney; Richard C Kevin; Anastasia S Suraev; Christopher Irwin; Ronald R Grunstein; Camilla M Hoyos; Iain S McGregor Journal: Drug Test Anal Date: 2021-08-30 Impact factor: 3.234